Carbureter.



P. G. HIDDLESODL' CARBURBTBR. APPLIGATI'ON FILED APB.24, 1914.

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PHILIP G. HIDDLESON, F SALEM, OHIO.

Maaate.

Specification of Letters Patent.

Patented Jan. 5, llml.

Application led pril M, 1914. Serial No. 834,276.

To'ZZ whom it may concern Beit known that li, PHILIP Gr. HmDLnsoN, a citizen of the United States, and a resident of Salem, inthe county of Columbiana and State of Ohio, have made certain'new and seful improvements in jCarbureters, of which the following is a specification.

My invention relates ,to improvements in carbureters, and it consists inthe combinations, constructinsand arrangements herein described and claimed.

An object of my invention is to provide a carbureter in which the explosive charge 'if' is so'intimately 'mixed as to be in the best titl.

possible condition for use in internal combustioin-engin A Ifurther object 'of my `invention is to provide af device in which the explosive 1: charge is pbsitively forced into the intake.

manifold, therebyobvia'ting all danger 'of an insuicientlsupplyof the charge due to poor suction in the cylinders or the engine for any' rea'pon whatever.

.A 'further object of my invention is to provide `a carbureter the use of which will' obvia'te all the inconveniences and irre larities which' are inherent in those carmreters ot theoat thamber-type, such as the' saturation of the Heat, frictidn of the valve mechanism controlled by the at, et'c., since the present inventionhas no Heat' chamber. .it further object, of -myf' inventionnis to provide anarbnreter havingja propeller disposed within. the 'carbureting chamber driven plication iin which--A Figure 'l' is a central section through the device, Fig. 2A is a section alongfthe line 22'or l leoking'in the direction ofthe arrow, Figf is a' section along the line 3--3 of Fig. 1, Fig. i is a section on the line 4-4 of Fig. 1, and Fig. 5 is an end view of the propeller shaft and its associated packing gland.

in carrying out my invention I provide a main casing l, preferably constructed of i metal having a curved extension 2 which constitutes the outlet from the oarbureting chamber, and which is provided with the usual throttle valve 3.A The extension `is. threaded, as shown at 4 and may be connected with the intake manifold of the internal combustion engine, not shown.

The extension 2 is provided with an integral boss 5 which forms one of the bearings for the propeller shaft 6. The other bearing is formed in a head 7 which is secured to the walls of the body portion 1 by means of screws 8 or in any other suitable manner. The head 7 has an integral annular wall 9 on the outside thereof, this wall being threaded lto receive the threaded portion of an end' member 1 0. The s ace 11 between the end member 10, the hea 7 and the wall 9 constitutes a fuel chamber, as will be hereinafter explained. l

The end member- 10 has an integra-l threaded extension 10, while the head 7 has a similar integral extension 7a. These extensions are threaded jto receive caps` 12 which constitute, with'their res ctive ex# tensions, packing 'glands'. in or ertdkeep the caps from' turning ll' provide |l..shaped stop members 13 provided with slots 13,'one of these members bei secured tothe head 7 and the other being 'secured to the end member Y'1'0 by means' of screws 14. 'These stop members are adj-usted so esito 'engage the plane4 acesof' the'c'aps 12, thereby preventing an rotation on thefshait 6.

' The sha 6, as will 'beobserved from Fig. 1, is bored out from Ione end (the right end in Fig. '1) to a point just beyond the inner wall of the end member 10, 'Disposed within the shatt and slidable longitudinally therealongis a 'needlevalve 15. The'valve seat is formed by a beveled reduced portion 15m. The needle` valve is spaced froxnthe interiorj wall of? the shattftor-a-portion of its length to` provide a fuel passage' and'this passage communicates by means of radially exten ing passages 16 (see Figuft with the interiorv of the carburetingfchamber. :f'llhe needle valve has "enlarged portions such as those shown at 15z and 15y which center the bears upon a screw plug 18.

Secured to the shaft 6 is a ball governor 19 whose hub abuts the boss 5, thereby preventing longitudinal movement of the shaft in one direction while a collar 20 secured to the shaft on the interior of the carbureting chamber prevents longitudinal movement in the other direction. The arms 19EL of the ball governor extend through openings such as those shown at 6b in the shaft 6 into a circular groove in the needle valve forA controlling the movement of the latter. On the inside of the carbureting chamber is disposed the propeller 21, the hub of the propeller being secured to the shaft by means of the pin 22 or in any other suitable manner.

As will be seen from Fig. 3, the shaft 6 is provided with radially extending passages 23 which communicate with the interior of the fuel chamber 11. These passages also communicate with the reduced bore 24 into which one end of the needle valve projects. The fuel inlet pipe 25 is shown in communication with the fuel chamber 11. The bottom of the carbureting chamber is provided with a drain cock 26.

Secured to the walls of the carbureting chamber 1-is a valve casing 27 which is provided with an air inlet valve 28 normally pressed upon by a spring 29, the tension of the spring being regulated by a screw plug 30. The interior of the valve casing 27 communicates with the interior of the carbureting chamber 1 by means of an opening 1a in the wall of the carbureting chamber as shown in Fig. 2.

From the foregoing description of the various parts of the device the operation thereof may be readily understood.

The shaft 6 is designed to be driven by any suitable means as by a belt 81 connected with the'engine (not shown). The rotation of the sha t causes the ball governor to move the needle -valve so as to open and to establish communication between the fuel chamber 1 1 and the interior of the carbureting chamber, the fluid passing throu h the passages 23 and 24, past the end of t e needle valve into the space between the needle valve and theA inner wallof -the shaft,

and out through the radially extending passages 16. The revolution of the propeller 21 causes a complete mixture of the. fluid which is in an atomized condition when entering the chamber with the air which is drawn in past the valve 28. yMoreover this mixture is forced out through the discharge extension 2 and into the intake manifold of the engine (not shown). As the speed of the engine increases more fuel is fed owing to the movement Aof the needle valve to' permit' more fuel to enter into-thelcfarbureting chamber, .while kthe Y'increased rotation of .narytype, where the charge is sucked into the cylinder, are-running at high speed they do not operate as efficiently as they would operate if the explosive charge had plenty of time to enter the cylinder. Since in the present device the pressure tending to force the charge into the intake manifold and thence into the cylinders increases with the speed of the engine, a carbureter constructed according to my invention will always furnish plenty of fuel even upto the maximum capacity of the engine.

I am aware that means for mechanically mixing the air and the atomized fuel consisting of rotatable propellers have been located in the intake manifolds of some engines, but generally these Propellers are driven by the force of the moving gas passalsl ing through the intake manifold. 'While vin the carbureting chamber and has the dou. ble function of thoroughly mixing the gases and of actually forcing them through the intake manifold. Moreover this force is in addition to the usual suction effected by means of which the gases are drawn into the cylinders in engines provided with an ordinary carbureter of the suction type.

' 1 claim:

1. In a carbureter, a carbureting chamber, an outlet from said carbureting chamber, means for admitting air into said carbureting chamber, a hollow shaft j ournaled in the walls ofsaid carbureting chamber, means for introducing fuel into the carbureting chamberthrough said hollow shaft, a propeller disposedon said hollow shaft for causing an intimate mixture of the fuel and air and for forcing the mixture out of the carbureting chamber, automatic means for controlling' the admission, of fuel through the propeller'shaft proportion to the speed of revolution of" the propeller shaft, said last named means comprising a needle valve disposed within the shaft and movable longitudinally thereof, and a centrifugal governiaaere said hollow shaft for establishing communication between said fuel chamber and the interior of said bore, other laterally extend ing passages in said hollow shaft for establishing communication between the interior of the hollow shaft and the interior of the carbureting chamber, and a propeller 'disposed on said shaft between the last mentioned. laterally extending passages and the outlet.

3. lin a carbureter, a carbureting chamber, an outlet therefor, a fuel chamber, a rotatable shaft j oui-naled in the walls of said carbureting chamber and said fuel chamber, said shaft being provided with a hollow bore, laterally extending fuel passages in said hollow shaft for establishing communication between said fiiel chamber and the interior of said bore, other laterally extending passages in said hollow shaft for establishing communication between the 'interior of the hollow shaft and the interior of the carbureting chamber, a propeller disposed on said shaft between the last mentioned laterally extending passages and the l outlet, a portion of the bore in said shaft being reduced to form a valve seat, and a movable needle valve within the bore and arranged to engage the valve seat.

4. lln a carbureter, a carbureting chamber, an outlet therefor, a fuel chamber, a 'rotatable shaft journaled in the walls of said carbureting chamber and said fuel chamber, said shaft being provided with a hollow bore, laterally extending fuel passages in said hollow shaft for establishing communication between said fuel chamber and the interior of said bore, other laterall-y extending passages in said hollow shaft for establishing communication between the interior of the hollow shaft and the interior of the carbureting chamber, a propeller disposed on said shaft between the last mene tioned laterally extending passages and the outlet, a portion of the bore in said shaft being reduced to form a valve seat, a movable needle valve within the bore and arranged to engage the valve seat, and a centrifugal governor carried by the shaft and being operatively connected with said needle valve for moving the latter in proportion to the speed of the shaft.

PHLIP- G. HlDDLESN.

Witnesses:

L. A. STANLEY, SoLoN C. Keinen.. 

